NCERT Class XI Mathematics - Sets - Solutions
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Question : 17
Total: 73
How many elements has P(A), if A = ϕ?
Solution:
Number of elements in set A = 0
Number of subset of set A =2 0
Hence, number of elements of P(A) is 1.
Number of subset of set A =
Hence, number of elements of P(A) is 1.
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